Exploration & Production Research Institute, Sinopec

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Beidaobu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Power transmission unit of an impactor, a hydraulic jet impactor an...
- Patent number 7,426,965
- Issue date Sep 23, 2008
- China Petroleum and Chemical Corporation
- Xinghua Tao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Automatic control system and method for bottom hole pressure in the...
- Patent number 7,158,886
- Issue date Jan 2, 2007
- China Petroleum and Chemical Corporation
- Xutian Hou
- E21 - EARTH DRILLING MINING

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Patents Applicationslast 30 patents

Information Patent Application
Power transmission unit of an impactor, a hydraulic jet impactor an...
- Publication number 20060011362
- Publication date Jan 19, 2006
- CHINA PETROLEUM & CHEMICAL CORPORATION
- Xinghua Tao
- E21 - EARTH DRILLING MINING